Fix missing ARIA label IDs

Trainline

From: WCAG 2.0 A 1.3.1

When specifying accessible names via aria-labelledby, ensure that the label elements exist.

Where this issue has occurred

Where this issue has occurred
Title / URLIssues
Find our best priced train destinations | Online Train Trip Planner | Trainlinewww.thetrainline.com/en-us/trip-planner
8
Thameslink | Book Cheap Train Tickets | Trainlinewww.thetrainline.com/en-us/train-companies/thameslink
7
Trains in Europe | Buy European Train Tickets Online | Trainlinewww.thetrainline.com/en-us/trains/europe
7
SNCF Trains | Buy SNCF Train Tickets for France Online | Trainlinewww.thetrainline.com/en-us/train-companies/sncf
7
Trains in France | Buy France Train Tickets Online | Trainlinewww.thetrainline.com/en-us/trains/france
7
Trainline: Train tickets, travel information, train times and train timetableswww.thetrainline.com/my-account/forgot-password
7
First time visit: View without clicking anythingwww.thetrainline.com/en-us
7
Trainline Business | Business travel simplifiedwww.thetrainline.com/business
7
Book Cheap Eurostar 2024 Tickets | Routes, Map & More | Trainlinewww.thetrainline.com/en-us/train-companies/eurostar
7
Trains in Italy | Buy Italy Train Tickets | Trainlinewww.thetrainline.com/en-us/trains/italy
7

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